[PATCH AUTOSEL 4.14 05/34] mfd: mt6397: Do not call irq_domain_remove if PMIC unsupported

Sasha Levin
2019-02-13T02:50:10Z

From: Nicolas Boichat <drinkcat@chromium.org>

[ Upstream commit a177276aa098aa47a100d51a13eaaef029604b6d ]

If the PMIC ID is unknown, the current code would call
irq_domain_remove and panic, as pmic->irq_domain is only
initialized by mt6397_irq_init.

Return immediately with an error, if the chip ID is unsupported.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mfd/mt6397-core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
index 04a601f6aebe..0afadea996bb 100644
--- a/drivers/mfd/mt6397-core.c
+++ b/drivers/mfd/mt6397-core.c
@@ -309,8 +309,7 @@ static int mt6397_probe(struct platform_device *pdev)

default:
dev_err(&pdev->dev, "unsupported chip: %d\n", id);
- ret = -ENODEV;
- break;
+ return -ENODEV;
}

if (ret) {
--
2.19.1